Loom picking mechanism



(No Model.) A 3 SheetsSh eet 1.

H. KNOWLTON 82: B. F. MEYER.

LOOM PIGKING MECHANISM.

Patented 001;. 7, 1884.

WITNESSES m VENTURS N. PETERS. Phom'Lithngrupher. \vnsnin mn, D. c.

. w Sheets-Sh9et 2. C. H. KNOWLTON & B. F. MEYER. LOOM PICKING MECHANISM (No Model.)

No. 306,260. Paten ted 001;. 7, 1884 fjdd.

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(No Model.) 3 Sheets-Sheet 3'. U. H. KNOWLTON & B. F. MEYER.

LOOM PIGKING MECHANISM. No. 306,260. Patented Oct. '7, 1884.

"WITNESSEZ IInrrnn dramas Parmvr Crimea CHARLES H. KN O\VLTON AND BENJAMIN F. MEYER, OF CAMDEN, NEW JER- SEY, ASSIGNORS TO MERRILL A. FURBUSII AND CHARLES A. FURBUSH, BOTH OF PHILADELPHIA, PENNSYLVANIA.

LOOIVI PICKING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 306,260, dated October 7, 1884.

Application filed December 3, 18%. (No model.)

To aZZ whom it may conce n: hung to the frameAof the loom, the long arm 50 Be it known that we, CHARLES H. KNOWL- of this lever being connected to the picker- TON and BENJAMIN F. MEYER, citizens of the stick by means of a strap, 1), passing round a United States, and residents of Camden, New pulley, b, on the frame A, as shown by dot- 5 Jersey, have invented certain Improvements ted lines in Fig. 1. The short arm of the lever in Loom Picking lVIechanism, of which the G is acted upon by a cam, H, on the crank- 55 following is a specification. shaft B whenever the vibration of the picker- Our invention relates to looms of that class stick is necessary, and said cam is freeto move of which the patent of W. and J. XV. Murk- .longitudinallyon the shaft B, so asto be thrown land, No. 97,106, November L3, 1869, is an into and out of action, the longitudinal moveexample; and the main object of our inmeat being effected by means of alever, I, the 60 vention is to permit the production of more long arm of which embraces a flange, d, on elaborate patterns than usual, by providing the cam, the short arm of the lever embracing for greater variety in the order or succession a waved cam, J, which is free to turn on a in which the picking-sticks are operated, afnrl stud, c, secured to thet'rame A. (See Fig. 4.)

ther object being to prevent injuryto the picki Only one side of the loom-frame and one end 65 er, picker-rods, or shuttleboxes when said I of the lathe are shown in the drawings; but boxes are raised before the picker has left the I it should be understood that the lathe has at box. the opposite end a picker-stick, F, and that In the accom jianying drawings, Figure 1, the opposite side of the loom has a lever, G,

Sheet 1, is a vertical longitudinal section of connected to the pickerstick, and a cam, H, 70 sufficient of aloom toillustrate our invention l for actuating said lever, the opposite cams Fig. 2, Sheet 2, a view of part of the same, i H being connected by a rod,f, so that both lookingin the direction of the arrow 1, Fig. 1; cams can be operated in unison by means Fig. 3, a view oira larger scale of part of the i of one cam, J, and lever I, it being undermechanism; Fig. 4, a transverse section on I stood that when one cam is moved. into ac- 75 thelinelZ, Fig, 1, also enlarged; Fig. 5, Sheet tion the other will be moved out of action. 1, a transverse section on the line 3 4, Fig. 3 These parts are all common tolooins as at presl I l Fig. 6, a section on the line 5 6, Fig. 5; Fig. out constructed; but it is usual to drive the 7, Sheet 3, a perspective view of the picker, cam J by means of spur-gearingfrom the shaft the picker-gnides, and the supports therefor; D and to govern the order in which the pick- 80 and Fig. 8, a rear view on a larger scale of cr-stieks are operated by the character of the one of said supports. cam J; but as the size ofthe latter is neces- A is one of the side frames of the loom, and sari] y limited, but a few picks from each side 3 5 B the crank-shaft adapted to suitable hearings are possible before the succession must be reon the loom-frame, and geared by spur-wheel pea-ted; hence the range of patterns which can 8 5 a and pinion ato the shaft D, the latter drivbe produced upon the loomis correspondingly ing, through bevel-gears a? and a a vertical limited. In order to permit greater freedom shaft, D, which is connected by bevel-gears in this respect, we use a simple uniformlya and a to the shaft I)", carrying the cams D", waved cam, J, in place of the usual patterned which operate the Jacquard mechanism. Tle cam, and control the operation of said cam J 0 lathe E of the loom is pivoted at the bottom, by means of pattern mechanism such as a as usual, and carries at each end the ordinary roller or card-chain, and as the latter can be guided shuttle-boxes E and picker-stick F, indefinitely extended the operation. of the the latter being hung to a bearing, 0, at the picker-sticks can beei'lectedin any order which base of the lathe, so that its transverse vibrais required by the exigencies of the pattern to t-ion is not interfered with by the vibration of be produced, however elaborate said pattern the said lathe. The vibration of the pickermay be. stick F is effected by means of a lever, G, The pattern mechanism shown in Figs. lto

6 of the drawings comprises a roller-chain, K, which is carried by a drum, 9, having ahandwheel, 9, secured thereto, and free to turn on a fixed spindle, h, which is bolted to a plate, L, on the frame A of the loom.

To a bearing in the plate L is adapted a short shaft, i, which is driven from the vertical shaft D by means of bevel-wheels i and t, and carries at the inner end a crank, 7'. This crank is connected by a rod, 76, to a lever, M, hung to a sleeve, 9", projecting from the drum 9, the short arm of this lever carrying a pawl, m, which is adapted to the teeth of a ratchet-wheel, 112, secured to the said sleeve. The long arm of the lever M is connected by a rod, 12, to an arm, N, which is hung to the stud e, and carries a pawl, 17, adapted to the teeth of a ratchet-wheel, p, forming part of the cam J. As the shaft i is rotated an intermittent movement is imparted to the patternchain and aivibrating movement to the arm N. Hence, if the pawl 10 were allowed to remain in gear with the ratchet-wheel 1), there would be a uniform operation of the cam J, a like shifting of the cams H, and a regular alternation in the action of the picking-sticks, the pick being first from one side and then from the opposite side of the lathe. The pawl 19 is, however, connected by a rod, 8, to an arm, 8, hung to the plate L, and acted upon by the rollers or enlargements of the patterirchain, so that by holding the pawl 19 out of gear with the ratchet-wheel p the movement of the cam J will be arrested, and any desired number of picks can be made from either end of the lathe before-shifting the cams H.

It frequently becomes necessary in the operation of the loom to run the same backward for a portion of a turn-as, for instance, in throwing the lathe back to remove a defective filling-threadand we therefore prefer to al low a certain amount of back movement of the shaft D without affecting the shaft 2', so that the pattern mechanism will not be deranged by the slight backward movement of the loom above referred to. This is effected by means of a clutch, one part, w, of which is loose on the shaft D, and carries the bevel-wheel 13", the other part, w, of the clutch being secured to the shaft, and the projections and recesses of the two parts of the clutch being such that the desired lost motion will be permitted. (See Fig. 2.) The especial form of pattern mechanism shown in the drawings, however, is not essential to our invention. For instance, the pawl 19 may be permitted to remain in engagement with the ratchetwheel p, and the arm N may be vibrated at irregular intervals, or at such-times only'as it is necessary to shift the cams H, the rod a being extended, as shown by dotted lines in Fig. 1, so that it can be connected to one of the needles of the jacquard, the cards being punched with reference to the proper operation ofthis needle. The upper end of the picker-stick F is connected by a link, q, Fig. 7, to the picker P, which is guided upon rods P, the opposite ends of which are carried by brackets S, secured to projections S on the lathe, as shown in Fig; 1.

It sometimes happens that the boxes E are moved before the projecting portion :0 of the picker has left a box; consequently there is a strain upon the picker and its rods, which, when the said rods are rigidly secured at the ends, results in injury to some of the parts. We overcome this objection by adapting the ends of the rods P to recesses in the brackets S, and retaining them in said recesses by means of jaws T, which are at liberty to yield when undue upward strain is exerted upon the rods P. In the present instance each jaw T forms part of an arm, T, pivoted to the bracket at 3, A bolt, V, passes through an opening in each arm, a nut, V, at one end of the bolt bearing on one arm, and a spring, V being interposed between the other arm and the nut V at the other end of the bolt. (See Fig. '8.) Each of the jaws T hasan inclined face, 1;, bearing upon the rod P, so that any tendency of the latter to rise 'will impart an outward thrust to each jaw T and arm T, this thrust being resisted by the spring V We claim as our invention- 1. The combination of the shaft B,haviug cam H, means for rotating the shaft, the lever l, the shifting-cam J, having a ratchet-wheel, p, the arm N, having a pawl, 12, adapted to the ratchet-wheel 1), the pattern-chain, its drum g, having ratchet-wheel m, the lever M, having a pawl, m, the shaft 1', having a crank, j, connected to the lever, means for rotating said shaft, and devices whereby the pattern-chain is caused to control the pawl 2, and the lever M is connected to the arm N, as set forth.

2. The combination of the pattern-chain, the shaft 73, means whereby said shaft is caused to actuate the pattern-chain, the drivingshaft D, gearing connecting the two shafts, and a clutch forming part of said gearing and constructed to have lost motion, as set forth.

3. The combination of the brackets S, rods P, and pivoted arms T, formed with jaws T, with the rods V, springs V, and nuts 'V V or equivalent stops, as set forth.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

CHARLES H. KNOWVLTON. BENJAMIN F. MEYER. Witnesses:

JOHN E. PARKER, HARRY SMITH. 

